Una cosa del genere:
`\documentclass[a4paper,14pt,titlepage]{extbook}
\let\originalcleardoublepage\cleardoublepage
\renewcommand{\cleardoublepage}{\clearpage{\pagestyle{empty}%
\originalcleardoublepage}}
\usepackage[italian]{babel}
\usepackage[utf8x]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[margin=3.5cm,heightrounded,bindingoffset=5mm]{geometry}
\usepackage{setspace}
\onehalfspacing %\doublespacing
\usepackage[osf,sc]{mathpazo}
\frenchspacing
\usepackage{titlesec}
\usepackage{titletoc}
% intestazioni
\usepackage{fancyhdr}
\fancypagestyle{plain}{%
\fancyhf{}
\fancyfoot[C]{}%
\renewcommand{\headrulewidth}{0pt}%
}
\pagestyle{fancy}
\fancyhf{}
\renewcommand{\chaptermark}[1]{\markboth{\textbf{\thechapter. #1}}{}}
\renewcommand{\sectionmark}[1]{\markright{\textbf{\thesection. #1}}}
\setlength{\headheight}{18.0pt}
\fancyhead[LO]{\nouppercase{\rightmark}}
\fancyhead[RE]{\nouppercase{\leftmark}}
\fancyhead[LE,RO]{\scshape\thepage}
% link
\usepackage[colorlinks,linkcolor=black,citecolor=black,urlcolor=black,
bookmarks,bookmarksnumbered]{hyperref}
% produce numeri in maiuscoletto in \frontmatter
\makeatletter
\DeclareRobustCommand{\@fakesc}[1]{%
\begingroup$\m@th$\fontsize{\sf@size}{\f@baselineskip}\selectfont#1\endgroup}
\newcommand{\@scroman}[1]{\@fakesc{\@Roman{#1}}}
\renewcommand\frontmatter{%
\cleardoublepage
\@mainmatterfalse
\pagenumbering{scroman}}
\makeatother
\newcommand{\HRule}{\rule{\linewidth}{0.5mm}}
\begin{document}
\frontmatter
\begin{titlepage}
\pdfbookmark{Frontespizio}{Frontespizio}
\HRule
\begin{center}
UNIVERSITÀ DEGLI STUDI DI XXXXXXXX
\small FACOLTÀ DI GIURISPRUDENZA
\small FILOSOFIA DEL DIRITTO
\vspace{3cm}
\begin{doublespace}
\textbf{\Large La fondazione trascendentale \\ del diritto pubblico}
\end{doublespace}
\vspace{2.5cm}
\end{center}
Relatore:
Ch.mo Prof.
\textbf{A\textsc{xxxxxx} I\textsc{bbbbb}}
\vspace{1cm}
\hfill Laureanda:
\hfill \textbf{S\textsc{aaaaa} I\textsc{bbbbb}}
\vspace{4cm}
\begin{center}
ANNO ACCADEMICO $2007-2008$
\vspace*{1cm}
\HRule
\end{center}
\end{titlepage}
\pdfbookmark{Indice}{Indice}
\tableofcontents
\mainmatter
\input{introduzione}
\addcontentsline{toc}{chapter}{Introduzione}
\input{capitolo01}
\input{capitolo02}
\input{capitolo03}
\input{capitolo04}
\input{capitolo05}
\input{conclusione}
\addcontentsline{toc}{chapter}{Conclusione}
\cleardoublepage
\backmatter
\cleardoublepage
\phantomsection
\input{bibliografia}
\addcontentsline{toc}{chapter}{Bibliografia}
\end{document}`
M.